Abstract: An exemplary plastic formulation is disclosed for the production of plastic bottles in a two-stage stretch blow-molding process, and includes at least 60% of HDPE (High Density Polyethylene) having a density of 0.941 g/cm3 to 0.965 g/cm3 and according to ISO 1133 a melt index 190° C./2.16 kg of 0.1 to 0.9 g/10 min. The HDPE contains a mono-modal or multi-modal HDPE having a second melt index 190° C./21.6 kg of 5 g/10 min to 50 g/10 min according to ISO 1133. A method is disclosed for producing a plastic bottle in a two-stage stretch blow-molding process using the plastic formulation.

Abstract: An extrusion blow-molding method for plastic containers, for example, plastic bottles, is disclosed, wherein a one- or multi-layer plastic tube is extruded with a predetermined extrusion pressure through an annular gap, which is delimited by an extrusion die provided on an extrusion head and a axially adjustable mandrel and which can be adjusted with regard to the width thereof. The extruded plastic tube is introduced into a mold cavity of a blow-molding tool arrangement, blow-molded into a plastic container in accordance with the mold cavity by overpressure and then demolded. Additional plastic material is added in metered quantity to the extruded plastic tube at least in some regions in the direct vicinity of the mouth of the extrusion die.

Abstract: A preform for manufacturing plastics material bottles or wide-necked vessels is described, having a rigid, substantially elongate, frustoconical body portion that is closed at one of its longitudinal ends by a dome-shaped end portion and at its opposite longitudinal end adjoins via a preform collar a neck portion provided with a pouring opening. The preform possesses in the body portion an external diameter that is reduced from the preform collar to the end portion. The body portion has a wall thickness which changes over its longitudinal extension substantially constantly by up to +2 mm. For this purpose, it possesses an internal diameter which decreases substantially constantly from a transition to the preform collar up to a transition to the dome-shaped end portion.

Abstract: A preform for manufacturing plastics material bottles or wide-necked vessels is described, having a rigid, substantially elongate, frustoconical body portion that is closed at one of its longitudinal ends by a dome-shaped end portion and at its opposite longitudinal end adjoins via a preform collar a neck portion provided with a pouring opening. The preform possesses in the body portion an external diameter that is reduced from the preform collar to the end portion. The body portion has a wall thickness which changes over its longitudinal extension substantially constantly by up to +2 mm. For this purpose, it possesses an internal diameter which decreases substantially constantly from a transition to the preform collar up to a transition to the dome-shaped end portion.

Abstract: The invention relates to a closure system constituted of a closure cap, preferably produced by plastic injection molding, and a container part that is provided with a mouth, likewise preferably produced from a plastic material. The closure cap can be screwed onto the container part and the system is provided with a tamper evidence mechanism that has to be actuated twice to be overcome. The aim of the invention is to improve said tamper evidence mechanism and its handling. For this purpose, the tamper evidence mechanism comprises an actuation tab having a twist-lock feature and being freely cut on the closure cap, and a counter-projection. Said counter-projection can be overcome by acting upon the actuation tab and is molded onto the container upstream of the counter-thread configured on the container part.

Abstract: Blow molding tool arrangement is disclosed for an extrusion blow molding machine for plastic containers, especially for plastic bottles, comprising two or more blow mold parts (1, 2) which can be moved from an open into a closed position and vice versa and in the closed state border a mold cavity (7) which has at least one access opening (22) for a blow mandrel (8), and with at least one laterally movable ejection device (10) for removing from the mold a plastic tube which has been inflated by overpressure according to the mold cavity (7). The ejection device (10) is arranged such that it can be extended laterally relative to the inside wall of the mold during ejection and touches the plastic tubing upon ejection in a lost section (74) which is detached after removal from the mold.

Abstract: Process for producing plastic containers, including an extrusion blow molding machine, is disclosed. For example, in an extrusion blow molding process for plastic bottles, in which plastic tubing (T) which has been extruded from an extruder head in a definable cycle is placed in the mold cavity of a blow molding tool arrangement, the inserted plastic tubing is inflated via an infeed blow mandrel by overpressure according to the mold cavity and is then removed from the mold. The extruded plastic tubing (T) is inserted into a mold cavity which is composed of several blow mold cavities which are located axially under one another, two of the blow mold cavities at a time being arranged mirror-symmetrically to one another and connected on their mouth regions and an individual blow mold cavity being separated from the bottom section of the adjacent blow mold cavity by a land region and having a mouth on the outer surface of the blow molding tool arrangement.

Abstract: A plastic bottle (1) and similar containers for receiving fluid substances have an elongated body (2), wherein the one longitudinal end is closed by a bottom (3) and the opposite end transitions into a neck section (4) having a pouring spout (5). A shoulder section (6) extends from the neck section (4) to a region (7) of the body (2), wherein the region has a larger diameter. The shoulder section (6) is equipped with structured regions (10) at least in a portion of the axial and circumferential extensions thereof.

Abstract: A closure cap system is provided, including a closure cap which is preferably produced according to a plastic injection molding method and provided with a closure stopper which can be placed on a neck opening which is also preferably made of plastic, said neck opening being that of a bottle container. The closure cap is provided with a bottom and the closure stopper is formed on the inner side of the cap bottom opposite the neck opening. In order to create a functionally secure stopper, said closure stopper is arranged on a plane in a parallel position with regard to the cap bottom such that it can pivot in relation thereto.

Abstract: A description is given of a semifinished product (20) for producing plastic tubes comprising a substantially cylindrical body (1), the one longitudinal end of which goes over into a head part (2) with a closable squeezing-out opening and the other longitudinal end (5) of which is formed in an open manner. The semifinished product (20) is produced in an extrusion blow-moulding process, in which an extruded parison of plastic comprising one or more layers is inflated in a blow mould in conformity with the cavity of the blow mould. The squeezing-out opening provided in the head part (2) is provided with a one-way closure (27), which has been created during the inflation process within the blow mould. A plastic tube comprising an elongated body (1) which is sealed by a pinch/weld portion (6) is also disclosed.

Abstract: The invention relates to a closure cap (1) which cooperates with a bottle container (4). A catching protection (5) is disposed on the neck (3) of the bottle container (4) and a lower-engaging projection (6?) is disposed on the closure cap (1). An insert (2) is associated with the closure cap (1). Said insert (2) can be fixed to the neck (3) of the bottle, resulting in a structurally advantageous, functionally reliable solution whereby the insert (2) is provided with means (22, 26) for rotationally secure retention on the neck (3) of the bottle and the closure cap (1) which can be pressed onto said insert (2) can be unscrewed from the insert (2).

Abstract: Blow molding tool arrangement is disclosed for an extrusion blow molding machine for plastic containers, especially for plastic bottles, comprising two or more blow mold parts (1, 2) which can be moved from an open into a closed position and vice versa and in the closed state border a mold cavity (7) which has at least one access opening (22) for a blow mandrel (8), and with at least one laterally movable ejection device (10) for removing from the mold a plastic tube which has been inflated by overpressure according to the mold cavity (7). The ejection device (10) is arranged such that it can be extended laterally relative to the inside wall of the mold during ejection and touches the plastic tubing upon ejection in a lost section (74) which is detached after removal from the mold.

Abstract: Safety rotating closure is disclosed for a multi-compartment bottle. For example, a two-chamber bottle has a separate pour neck (7, 8) with a pour opening (9, 10) for each chamber (3, 4) and a rotating closure (1; 100) which can be screwed onto a common neck part (5) of the multi-compartment bottle (2) and is provided with a mechanically acting child safety means against unauthorized loosening of the rotating closure (1). The rotating safety closure (1; 100) has essentially conical seal parts (20; 120) which in the screwed-on state engage the pour openings (9, 10) of the pour necks (7, 8) and interact with the inside walls to form a seal. The interlocking elements of the child safety means are located on the rotating safety closure (1; 100).

Abstract: A closure cap (1) which interacts with a bottle vessel (4), a latching projection (5) being formed on a bottle neck (3) of the bottle vessel (4), and an engage-under projection (6?) being formed on the closure cap (1), an insert part (2) furthermore being coordinated to the closure cap (1), said insert part (2) is fastenable to the bottle neck (3), and the closure cap (1), which is knockable on to the insert part (2), is unscrewable from the insert part (2), and wherein the insert part (2) has means for holding on the bottle neck (3) in a manner secured against rotation, the latching projection (5) is formed as a screw thread on the insert part (2), and for childproof holding of the closure (1) on the insert part (2), the insert part (2) or the bottle neck (3), in a region of a pedestal step (31), has a latching shaped-out portion (30) which interacts with a mating projection or a recess on the closure cap (1).

Abstract: The invention relates to a method for the production of a container (45″), with an opening (53), whose opening axis (57) is at an angle to the container axis (23), whereby a blank (45) is introduced into a blowing mould (11, 13), a fixing region (47) of the blank (45) pressed against a stop zone (41) on the blowing mould and the blank pneumatically formed in the blowing mould. The fixing region (47) of the blank (45) is pressed against a stop zone (41) on the blowing mould, inclined at an angle other than 90°. The moulding thus occurs such that an opening region axis (58) of the blank (45, 45′) is at an angle to the container region axis (59) of the blank (45, 45′). The opening axis (57), of the blowing mould (11), forms an angle to a longitudinal axis (51) of a stretching drift (49), which may be extended along the longitudinal axis thereof.

Abstract: A closure (V) for a vessel, such as a bottle (1), having a closure cap and a closure lower part, tamper proofing (37) being provided, having a securing part which, on first use, can be displaced into a position which clearly indicates that the vessel has been opened, and, to achieve a simple structure which is reliable in use, the securing part comprises a securing projection (38) which passes freely through the closure cap and is secured to the closure lower part, and the securing projection, to destroy the tamper proofing can be pressed into the closure lower part, and latching elements, which interact in the manner of barbs with the pressed-in securing part, are formed in the closure lower part.